Radiation shielding properties of mortars containing heavyweight particles

Kerntechnik ◽  
2021 ◽  
Vol 86 (1) ◽  
pp. 64-69
Author(s):  
N. U. Kockal ◽  
A. Cesur ◽  
S. F. Ozmen
Keyword(s):  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Point Sources ◽  
Calcareous Sand ◽  
Heavy Particles ◽  
Attenuation Coefficients ◽  
High Purity Germanium ◽  
Mass Attenuation Coefficients ◽  
Shielding Properties ◽  
Mass Attenuation

Abstract In this study the radiation shielding properties of mortar samples were investigated. The samples were created by replacing heavyweight particles of iron, steel and chromium waste by calcareous sand in different volume percentages. Additionally, the effects of the physical properties of particles and samples on shielding properties is also discussed. In the scope of this work, the radiation shielding properties of mortar samples were measured by determining the values of mass attenuation coefficients by means of an experimental setup consisting of 133Ba, 137Cs and 60Co standard point sources and high purity germanium (HPGe) detector. It’s concluded that the highest mass attenuation coefficient values among the heavy particles were achieved by chromium particles. However, all the high-density particles used in the study improved the radiation shielding properties of the mortars considerably compared to ordinary mortars.

scholarly journals Radiation Shielding Properties Comparison of Pb-Based Silicate, Borate, and Phosphate Glass Matrices

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Suwimon Ruengsri
Keyword(s):  
Phosphate Glass ◽  
Theoretical Calculations ◽  
Visible Region ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Attenuation Coefficients ◽  
Total Attenuation ◽  
Shielding Properties ◽  
Glass Matrices ◽  
Mass Attenuation

Theoretical calculations of mass attenuation coefficients, partial interactions, atomic cross-section, and effective atomic numbers of PbO-based silicate, borate, and phosphate glass systems have been investigated at 662 keV. PbO-based silicate glass has been found with the highest total mass attenuation coefficient and then phosphate and borate glasses, respectively. Compton scattering has been the dominate interaction contributed to the different total attenuation coefficients in each of the glass matrices. The silicate and phosphate glass systems are more appropriate choices as lead-based radiation shielding glass than the borate glass system. Moreover, comparison of results has shown that the glasses possess better shielding properties than standard shielding concretes, suggesting a smaller size requirement in addition to transparency in the visible region.

scholarly journals Gamma Attenuation Coefficients of Nano Cadmium Oxide/High density Polyethylene Composites

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ahmed M. El-Khatib ◽  
Mahmoud I. Abbas ◽  
Mohamed Abd Elzaher ◽  
Mohamed S. Badawi ◽  
Mahmoud T. Alabsy ◽  
...  
Keyword(s):  
Particle Size ◽  
High Density Polyethylene ◽  
Cadmium Oxide ◽  
Radiation Shielding ◽  
Point Sources ◽  
High Density ◽  
Attenuation Coefficients ◽  
Effect Of Particle Size ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

Abstract In the present work, high density polyethylene (HDPE) matrix mixed with micro-sized and nano-sized Cadmium oxide (CdO) particles of different concentrations were prepared by compression molding technique. The aim of the study is to investigate the effect of particle size and weight percentage of CdO particles on the gamma radiation shielding ability of CdO/HDPE composites. The mass attenuation coefficients of pure HDPE, micro-CdO/HDPE and nano-CdO/HDPE composites were evaluated at photon energies ranging from 59.53 keV to 1408.01 keV using standard radioactive point sources [241Am, 133Ba, 137Cs, 60Co and 152Eu]. Adding micro and nano CdO particles to the HDPE matrix clearly increases the mass attenuation coefficients of the composites and the improvement is more significant at low γ-ray energies. The effect of particle size of CdO filler has an important role on the shielding ability of the composite. The experimental results reveal that, the composites filled with nano-CdO have better γ-radiation shielding ability compared to that filled with micro-CdO at the same weight fraction. A relative increase rate of about 16% is obtained with nano-CdO content of 40 wt% at 59.53 keV, which attributed to the higher probability of interaction between γ-rays and nanoparticles. From this study, it can be concluded that nano-CdO has a good performance shielding characteristic than micro-CdO in HDPE based radiation shielding material.

scholarly journals Fast Neutron and Gamma-Ray Attenuation Properties of Some HMO Tellurite-Tungstate-Antimonate Glasses: Impact of Sm3+ Ions

2021 ◽  
Vol 11 (21) ◽  
pp. 10168
Author(s):  
Ghada ALMisned ◽  
Huseyin O. Tekin ◽  
Hesham M. H. Zakaly ◽  
Shams A. M. Issa ◽  
Gokhan Kilic ◽  
...  
Keyword(s):  
Cross Section ◽  
Radiation Shielding ◽  
Fast Neutrons ◽  
Monte Carlo Code ◽  
Attenuation Coefficients ◽  
Effective Removal ◽  
Removal Cross Section ◽  
Mass Attenuation Coefficients ◽  
Shielding Properties ◽  
Mass Attenuation

Characteristics of tellurite-tungstate-antimonate glasses containing heavy metal oxide were investigated in detail using two methods: the MCNPX Monte Carlo code and the Phy-X/PSD platform. The influence of Sm2O3, translocating with TeO2 at ratios of 0.2, 0.5, 0.8, 1, and 1.5 mol% on radiation shielding properties of glasses, was set forth with five glass structures determined according to the (75-x)TeO2-15Sb2O3-10WO3-xSm2O3 glass composition. Densities of the glasses were prepared by doping a low ratio of Sm2O3 that varied between 5.834 and 5.898 g/cm3. Sample densities, which have an important role in determining radiation shielding character, increased depending on the increase in Sm2O3 concentration. Effective removal cross-section (∑R) values against fast neutrons, as well as linear and mass attenuation coefficients, half-value layer, mean free path, variation of effective atomic number against photon energy, exposure, and energy built-up factors, were simulated with the help of these two methods. As a result of these estimates, it can be concluded that values obtained using both methods are consistent with each other. From the obtained values, it can be concluded that the SM1.5 sample containing 1.5 mol% would have the most efficient role in radiation shielding. An increase of Sm2O3 resulted in a significant increase in linear and mass attenuation coefficients and effective removal cross-section values belonging to fast neutrons and, in addition, resulted in a decrease in the half value layer. Doping HMO glasses with Sm2O3 was observed to contribute directly to the development of radiation shielding properties of the glass.

scholarly journals Estimation of the X/γ- ray shielding properties of different glass system using Monte Carlo Simulation

2021 ◽  
Vol 12 (2) ◽  
pp. 1117-1122
Author(s):  
Ayano Shanko, MD, Et. al.
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Attenuation Coefficient ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Glass System ◽  
Effective Electron ◽  
X Ray ◽  
Shielding Properties ◽  
Mass Attenuation

The aim of the research is to estimate the X-ray shielding properties of different glass systems using Monte Carlo Simulation. X-ray glass is also known as radiation shielding glass. Glass provides protection against the absorption of energy radiation. The shielding layer is formed by a high concentration of lead and barium. The mass attenuation coefficient, the effective atomic number and the effective electron density are used to determine the position of gamma-ray photons in matter. Shield characterization in terms of mass attenuation coefficient (μm), transmission fraction (T), effective atomic numbers (Zeff), half-value layer (HVL) and exposure build-up. factor (EBF) of a glass system is estimated by the Monte Carlo Simulation. The random sampling and statistical analysis are computed using the monte carlo simulation. Various external factors are considered as the input parameters. The different composition of the glass will be examined using the Monte Carlo simulation and the shielding capability would be determined for the various samples.

Comparative Study on Effective Atomic Numbers of Silicate, Borate and Phosphate Glass Matrices over 1 keV-100 GeV Energy Range

2014 ◽  
Vol 979 ◽  
pp. 405-408
Author(s):  
Keerati Kirdsiri ◽  
Narong Sangwaranatee
Keyword(s):  
Chemical Composition ◽  
Comparative Study ◽  
Energy Range ◽  
Total Mass ◽  
Mass Attenuation Coefficient ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Glass Matrices ◽  
Mass Attenuation

In this work, total mass attenuation coefficients and effective atomic numbers of a series of three host glasses with different chemical composition, 65RmOn: 10CaO : 25Na2O mol% (where RmOnare B2O3, SiO2and P2O5, respectively) have been studied as a function of photon energy. The total mass attenuation coefficient values were taken from WinXCom program, were used to evaluate the effective atomic numbers in the energy range from 1 keV to 100 GeV. The obtained results for all samples are compared and discussed.

Measurement of Mass Attenuation Coefficients of Blue Sapphire at Different Photon Energy by Compton Scattering Technique

2011 ◽  
Vol 103 ◽  
pp. 71-75 ◽  
Author(s):  
Jakrapong Kaewkhao ◽  
P. Lofimkitjaroenporn ◽  
S. Tuscharoen ◽  
T. Kittiauchawal ◽  
W. Chewpraditkul ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Attenuation Coefficient ◽  
Gamma Rays ◽  
Mass Attenuation Coefficient ◽  
Attenuation Coefficients ◽  
Scattering Technique ◽  
Mass Attenuation Coefficients ◽  
Experimental Values ◽  
Good Agreement ◽  
Mass Attenuation

The mass attenuation coefficients of blue sapphire were measured at the different energy of γ-rays using the Compton scattering technique. There are in good agreement of scattered gamma rays energies between theoretical value and experimental value, reflecting the validation of Compton scattering system setup. The results show that, the experimental values of mass attenuation coefficient are in good agreement with the theoretical values. The mass attenuation coefficients increase with the decrease in gamma rays energies. This may be attributed to the higher photon interaction probability of blue sapphire at lower energy. This result is a first report of mass attenuation coefficient of blue sapphire at different gamma rays energies.

Z dependence of photon interactions in wood materials

2013 ◽  
Vol 91 (3) ◽  
pp. 221-225 ◽  
Author(s):  
B. Saritha ◽  
A.S. Nageswara Rao
Keyword(s):  
Gamma Ray ◽  
Mass Attenuation Coefficient ◽  
Narrow Beam ◽  
Attenuation Coefficients ◽  
Beam Geometry ◽  
Mass Attenuation Coefficients ◽  
Experimental Values ◽  
Photon Interactions ◽  
Good Agreement ◽  
Mass Attenuation

Transmission experiments were performed on wood in a narrow-beam geometry using a collimated gamma ray beam at 59.5 and 661.6 keV. The mass attenuation coefficients were determined from experiment, and effective atomic numbers were computed from theoretical equations. It was found that the mass attenuation coefficient decreases with increasing photon energy. Experimental values were compared with those from the XCOM database and with analytical results, and good agreement was achieved. This type of study gives some insight about photon interactions with wood materials.

Gamma radiation shielding properties of glasses within the TeO2-TiO2-ZnO system

2019 ◽  
Vol 107 (6) ◽  
pp. 517-522 ◽  
Author(s):  
M. Almatari
Keyword(s):  
Gamma Radiation ◽  
Attenuation Coefficient ◽  
Atomic Number ◽  
Effective Atomic Number ◽  
Mean Free Path ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Glass System ◽  
Shielding Properties ◽  
Mass Attenuation

Abstract Radiations are widely used in hospitals and health services in radiotherapy and molecular imaging using x-ray and gamma radiation which considered as the most penetrating radiations and very difficult to shield. In this study, the radiation shielding properties of different zinc oxide (ZnO) concentrations of the (95-x)TeO2-5TiO2-xZnO (x=5, 10, 15, 20, 25, 30 and 40 mol%) glass system was investigated to be introduced as a new transparency effective shielding material. In order to study shielding properties, mass attenuation coefficients in the energy range of 0.015–15 MeV photon energies for the current glass system were calculated using ParShield software. Moreover, half value layer, mean free path and effective atomic number were evaluated using the obtained attenuation coefficient. The results indicated that if ZnO was added to the current glass system the mass attenuation coefficient will be decreased as well as effective atomic number values. The highest mass attenuation coefficient at all energies was found to be in TT5Z5 glass sample as well as the effective atomic number value.

scholarly journals A mathematical function for describing the dependence of the mass attenuation coefficient versus energy for composite materials in an energy range of 100 keV to 2 MeV

2019 ◽  
Vol 34 (1) ◽  
pp. 47-56
Author(s):  
Nguyen Anh ◽  
Lam Nhat ◽  
Ho Ngan ◽  
Hoang Tam
Keyword(s):  
Composite Materials ◽  
Attenuation Coefficient ◽  
Mass Attenuation Coefficient ◽  
Coefficient Of Determination ◽  
Mathematical Function ◽  
Attenuation Coefficients ◽  
Coefficient Versus ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

This work proposes a mathematical function for describing the dependence of mass attenuation coefficients vs. energy for composite materials in the range of 100 keV to 2 MeV. The obtained results show that the proposed function is capable of accurately describing the data with a coefficient of determination of approximately 1 for all investigated materials. Using the proposed mathematical function, the mass attenuation coefficients were interpolated and compared with the results from the Monte Carlo simulation. The results show good agreement when the simulated to interpolated mass attenuation coefficient ratios are in the range from 0.95 to 1.05. Moreover, the values of interpolated mass attenuation coefficients have also been compared with the experimental data in the previous works which indicates that most of these ratios range from 0.9 to 1.1. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/NTRP1902209E">10.2298/NTRP1902209E</a><u></b></font>

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